21355488

素因数分解:

$2^5\times 3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1$

素因数の和:147

約数の個数: 240

約数和(自身を含む): 79035264

約数和(自身を除く): 57679776

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 16, 18, 21, 22, 24, 27, 28, 32, 33, 36, 42, 44, 48, 54, 56, 63, 66, 72, 77, 81, 84, 88, 96, 99, 107, 108, 112, 126, 132, 144, 154, 162, 168, 176, 189, 198, 214, 216, 224, 231, 252, 264, 288, 297, 308, 321, 324, 336, 352, 378, 396, 428, 432, 462, 504, 528, 567, 594, 616, 642, 648, 672, 693, 749, 756, 792, 856, 864, 891, 924, 963, 1008, 1056, 1134, 1177, 1188, 1232, 1284, 1296, 1386, 1498, 1512, 1584, 1712, 1782, 1848, 1926, 2016, 2079, 2247, 2268, 2354, 2376, 2464, 2568, 2592, 2772, 2889, 2996, 3024, 3168, 3424, 3531, 3564, 3696, 3852, 4158, 4494, 4536, 4708, 4752, 5136, 5544, 5778, 5992, 6048, 6237, 6741, 7062, 7128, 7392, 7704, 8239, 8316, 8667, 8988, 9072, 9416, 9504, 10272, 10593, 11088, 11556, 11984, 12474, 13482, 14124, 14256, 15408, 16478, 16632, 17334, 17976, 18144, 18832, 20223, 21186, 22176, 23112, 23968, 24717, 24948, 26964, 28248, 28512, 30816, 31779, 32956, 33264, 34668, 35952, 37664, 40446, 42372, 46224, 49434, 49896, 53928, 56496, 60669, 63558, 65912, 66528, 69336, 71904, 74151, 80892, 84744, 92448, 95337, 98868, 99792, 107856, 112992, 121338, 127116, 131824, 138672, 148302, 161784, 169488, 190674, 197736, 199584, 215712, 222453, 242676, 254232, 263648, 277344, 296604, 323568, 338976, 381348, 395472, 444906, 485352, 508464, 593208, 647136, 667359, 762696, 790944, 889812, 970704, 1016928, 1186416, 1334718, 1525392, 1779624, 1941408, 2372832, 2669436, 3050784, 3559248, 5338872, 7118496, 10677744, 21355488]

約数ペア:

[(1, 21355488), (2, 10677744), (3, 7118496), (4, 5338872), (6, 3559248), (7, 3050784), (8, 2669436), (9, 2372832), (11, 1941408), (12, 1779624), (14, 1525392), (16, 1334718), (18, 1186416), (21, 1016928), (22, 970704), (24, 889812), (27, 790944), (28, 762696), (32, 667359), (33, 647136), (36, 593208), (42, 508464), (44, 485352), (48, 444906), (54, 395472), (56, 381348), (63, 338976), (66, 323568), (72, 296604), (77, 277344), (81, 263648), (84, 254232), (88, 242676), (96, 222453), (99, 215712), (107, 199584), (108, 197736), (112, 190674), (126, 169488), (132, 161784), (144, 148302), (154, 138672), (162, 131824), (168, 127116), (176, 121338), (189, 112992), (198, 107856), (214, 99792), (216, 98868), (224, 95337), (231, 92448), (252, 84744), (264, 80892), (288, 74151), (297, 71904), (308, 69336), (321, 66528), (324, 65912), (336, 63558), (352, 60669), (378, 56496), (396, 53928), (428, 49896), (432, 49434), (462, 46224), (504, 42372), (528, 40446), (567, 37664), (594, 35952), (616, 34668), (642, 33264), (648, 32956), (672, 31779), (693, 30816), (749, 28512), (756, 28248), (792, 26964), (856, 24948), (864, 24717), (891, 23968), (924, 23112), (963, 22176), (1008, 21186), (1056, 20223), (1134, 18832), (1177, 18144), (1188, 17976), (1232, 17334), (1284, 16632), (1296, 16478), (1386, 15408), (1498, 14256), (1512, 14124), (1584, 13482), (1712, 12474), (1782, 11984), (1848, 11556), (1926, 11088), (2016, 10593), (2079, 10272), (2247, 9504), (2268, 9416), (2354, 9072), (2376, 8988), (2464, 8667), (2568, 8316), (2592, 8239), (2772, 7704), (2889, 7392), (2996, 7128), (3024, 7062), (3168, 6741), (3424, 6237), (3531, 6048), (3564, 5992), (3696, 5778), (3852, 5544), (4158, 5136), (4494, 4752), (4536, 4708)]